Improvement in canceling and dating stamps



W. J. BLAOKWELL. Canoelinga'nd Dating-Stamp.

No.. 215,866. l Patented May l27, 1879.

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UNITED STATES PATE-NTA FFIGE.

VILLIAM J. BLACKWIILL, OF VVAYNESBOROUGH, VIRGINIA, ASSIGNOR TO WILLIAM BLACKWELL, OF SAME PLAGE.

IMPROVEMENT IN CANCELING AND DATING STAMPS.

Specification forming part of Letters Patent No. 215,866, dated May 27, 1879; application filed March 20, 1879.

To all 'whom fit may concern:

Be it known that I. WILLIAM J. BLACK- WELL, of Waynesborough, in the county of Augusta and State of Virginia, have invented a new and Improved Canceling and Dating 'The invention is an improvement in such machines as combine a device carrying the canceling or marking devices proper and a sliding plate and cam-shaft in such a manner that when the said cam is rotated the plate will be moved back to uncover the ink-pads and the cancelers or markers forced down upon the pads.

The improvement consists in the construction and arrangement of parts, as hereinafter described and claimed. y

In the accompanying drawings, forming part of this specification, Figure l is a plan View with the cover of the box removed, and Fig. 2 is a longitudinal section of the machine.

The lever A is arranged horizontally and fulcrumed upon a rod, a, in a box, B. The canceling and dating or other marking devices, O, are attached tothe free end of the lever A in any suitable manner, and the box B has an extension, D, in which the ink-pads b are placed directly beneath said devices. A sliding plate, E, forms the top or cover of such extension D, and is arranged to slide into and out of the box B through a slot in the end of the latter.

The reciprocation of the plate E may be effected by hand; but the means I preferably employ and have illustrated in the drawings is the crank-shaft or lever F, which is arranged beneath and at right angles to the lever A, and suitably journaled in the sides of the box B.

The plate E is connected to a crank or bend of said shaft-F by a metal loop or hoop, G, while the lever A is depressed to bring the canceling devices O down upon the ink-pads b, or upon the letter or other paper to be marked, by means ot' the crank or bend c of the shaft, which may be caused to press upon a rod or other pendent portion, d, of the lever A.

A spring, H, serves to hold the lever horizontal when the crank-lever Fis not acting to depress it.

By turning thc handle e of the crank-lever F to the backward, as shown in full lines, Fig. l, the slide E will be moved back, the ink-pads b thereby uncovered, and the canceling or marking devices C pressed down upon the latter.

By reversing the handle c of the crankshaft the slide E will be moved back to cover the ink-pads, and the canceling and marking devices G pressed -upon a letter or other paper placed beneath them upon said plate E, as shown in full lines, Fig. 2.

Thus the slide E serves as a cover for the ink-pads, and also as a table or bed for the device O to strike upon in the act of canceling or marking, while the same instrumentalityto wit,`crankshaft F-operates both slide E and lever A.

By such construction and arrangement of parts I provide a cheap, simple, easily-operated, and efficient machine.

A knob, f, is applied to the free end of the lever A, for use in pressing the latter down upon the ink-pads, or upon letter or other paper to be canceled or otherwise marked.

Rotating sleeves may be applied to the crank of shaft F, to enable the machine to operate with little friction.

What I claim isl. The combination ofthe crank-shaft F with the pivoted spring-lever and the stamps or marking devices attached to its free end, the sliding plate E, connected directly to the crank-shaft, the box having the ink-pads b b iixed in its front portion, and the guards or loops d, connecting shaft and lever, as shown and described, so that when the shaft is oscillated it will depress the lever by pressing on the guard, as specified.

2. The combination of the sliding pad-cover The above specification of my invention signed by me this 14th day of March, 1879.

W. J BLACKWELL.

Witnesses:

AMos W. HART, GHAs. A. PETTIT. 

